feat: support Hugo 0.84.1 and full Go modules

go.mod

@@ -2,8 +2,7 @@ module github.com/wowchemy/wowchemy-hugo-modules/v5
 
 go 1.15
 
-require github.com/wowchemy/wowchemy-hugo-modules/wowchemy/v5 latest
 replace github.com/wowchemy/wowchemy-hugo-modules/wowchemy/v5 => ./wowchemy
-
-require github.com/wowchemy/wowchemy-hugo-modules/wowchemy-cms/v5 latest
 replace github.com/wowchemy/wowchemy-hugo-modules/wowchemy-cms/v5 => ./wowchemy-cms
+require github.com/wowchemy/wowchemy-hugo-modules/wowchemy/v5 v5.0.0-20210629192904-559885af86b7
+require github.com/wowchemy/wowchemy-hugo-modules/wowchemy-cms/v5 v5.0.0-20210629192904-559885af86b7